how to change html of element in jquery code example

Example 1: jquery set html of element

$("button").click(function(){
  $("p").html("Hello <b>world</b>!");
});

Example 2: change html using jquery

//Takes input from entire page and uses it to change the HTML of h1
$(document).keypress(function(event){
  $("h1").text(event.key);
});